Burner.



o. V. STUART..

BURNER.

APPLICATION FILED ANT24, 1.914.

Patented sept.29,1914.

unire sTAQnsrn ormoni.,

CARLES VLVON STUART, F MEMPHI TENNESSEE.

BURNER.

n l l Specification of Letters Patent.

rammen sept. en, i914.

Application filed March 2,4, 1914. Serial No: 826,991.

To oli whom it may concern Be it lmown that l, Guantes V. STUART, a citizen of the United States, residing, at Memphis, in the county of Shelby and .State Tennessee, have invented new and use ful improvements in lnrners, of which the following is a speeiication.

The invention relates te an fimprmed burner designed primarily for use with solid fuel, the construction providing for the ini.- tial. use of a liquid fuel to produce an inresence in the combustion chamber, uf. erein the solid fuel may be completely burned with the maximum heating effect niinimuifn resultant products of comlar-.stionu I he main obiect of the present invention .is the provision of a burner involving a conibusticn chamber to Which a liquid fuel is introduced under pressure and burned to produce a state of incandescencc vin said chamber, a solid fuel bei-ng introduced into said chamber under pressure and under mechanical control to distribute said fuel within the chamber to provide for the complete' combustion of the fuel.

,The invention in the preferred forni of ldetails Will be described in the followingr specification, reference being had particularly to the accompanying drawings, in `which the igure is a vertical sectional View partly in elevation of the improved burner.

The improved burner, as is clearly illustrated in the accompanyingr drawing, comprises a combustion chamber l, which may be of any desired size or contour in accordance with' the Work contemplated. ln the form illustrated, the chamber comprises a Suitable casing, interiorly lined with lire brick or other refractory material, as 2, one end of the chamber being open as at 3, from which the heated products are taken for use.

The opposing or relatively closed end of the chamber has secured thereto one terminal. of a conduit 4, providing, as hereinafter described, for the delivery of the fuel for combustion to the chamber l. The remote end of the conduit is open to the atmosil' we, for the admission of air, and adjacent pen end the conduit is provided with Y ncsired type of suction pressure device, This device shown in the drawings the injector form, though it is to be ,ood that 'l contemplate the use of type of such device, so long as in 'Vt-will create a pressure in advance of the same toward the combustion chamber. and a suction in rear of the same toward the open end of the conduit.

In the conduit 4 immediately adjacent the 50 combustion chamber, is arranged an interruptor 6, in the form of a baflle means. As shown, such interrupter is ln the form of a spiral element compelling, a rotative movement of such material as is vforced by the same toward the combustion chamber. It is of .course to ybe understood that While' preferring such sipral baffle element, l contemplate the use of any desired type of such baffle device as may be found desirable in the particular instance.

Intermediate the pressure device 5 and the baille t5 the conduit Ll is in communication with a laterally projected feed pipe 7, terminating in a hopper 8. The hopper and feed pipe are constructed for the feeding of thesol'id fuel to the conduit 4, and for such ceding purposes, as well as for an additional function, which will later appear, l

arrange in the conduit and feed pipe a spiral Se conveyor i), positively driven through suitable mechanism as l0. The delivery end of the conveyor tcrmimltes in the feed pipe 7 beyond the juncture of said pipe with the conduit, for a purpose which will, presently 35 appear. l

rl`he conduit 4 is in open communication with the chamber l through an opening llthe Walls of which converge from the couduit to the casing, the said opening l'l con- 90 stituting what may be termed the burner opening, with the point ol ignition al the combustion chamber end of' such opening.

ln use, in the type of burner shown, vthe conduit 4f. is in open commuuiealion with a 95 liquid fuel pipe l2, having a controlling valve, and arranged intermediate the pressure clement 5 and the open cud of the conduit. The fuel pipe is lireferably for the delivery of a suitable hydro-carinii), though l' do not limit myselfin any particular lo the use of such.

Aln the use of the improved burner, the liquid fuel pipe l2 is open to the conduit 4 so that a previously determined quantity of the liquid fuel is delivered to the conduit, and by the suction ot the pressure clement 5 mixed with the indrawn air and forced longitudinally through the conduit, past the baille element 6, wherein a complete rotary intermixing occurs, and into the combustion chamber, Where the mixture is ignited.

This burning is Continued until the interior of the combustion chamber is in e Stute of ineandescence, after which tlieliquid fuel is eut ofi? and the solid fuel admitted. As the pressure from the eleinent 5 is comparuq tively slight, it is apparent that the banking of the solid fuel incident to the use of the eonveyer 9, combined With the quantity ot' such solid material, Will effectively resist pressure through Said feed pipe, with. the result that the solid fuel Will be fed through the unrestricted portion of the Jeed pipe in a solid stream, met by the pressure stream, and forced longitudinally of the conduit, past the baille element 6, and into the Combustion chamber. ln the movement oit' the solid fuel in the forni of belleelenient shown,y given a rotary motion, and utV the same time put under more or less pressure7 so that is it enters the eoi'nbuston chamber, it will, by reason of these conditions7 spieudrwithin said chamber for its most eee-tive consumption under the incandescent condition of the chamber, It is understood that the pressure from the element 5 is insnilieent to force the fuel the full length of the combustion chamber, so that its consumption is es sured within the body of the Chamber.

The improved burner is designed for developing an extremely high degree of heet under ordinary conditions of fuel eonsninption, with the further ell'eet of u more or less perfect Consumption of solid fuel. The use of the burner is contemplated in any and all places and under :my und all condi'- pust the baille element, it

tions Where frel consumption. is utilised. il, being particularly advantageous in sl'mini gene rn tion.

What claimed isml.. ji burner ineludinfa combustionehumbetr, :t conduit buying eoninmnieatiou with the Chamb@ :i llnid pressure device opening;

Vinto the eoneuit and directing the pressure longitudinally thereof toward the chamber, e liquid fuel feed pipe opening into the eine duit beyond tbe pressure device relative to the chamber, sind. u. solid fuel feed pipe opening into 1The conduit between the pres sure device und the chamber, seid Gemini-`I being open to the atmosphere beyond the liquid fuel feed pipe,

il burner inelnebmgneonibustionchumer? :t conduit having eon'nnunication with the eli-umher fluid pressure device opening into the conduit nu( direeting the pre-,smilie longitudiimlly thereof towero the elimini vr, e liquid fuel feed pipe openinginto the eonduit heyoinl r, ie ressure devise .relative to the chamber,l` n seid fuel feed pipe. opening: into the conduit between the prese and cheminee and an interi'npteil n'iazi in the cond lt btween the solid 'fuel loew. plv@ and the dumber, Seid Conduit heini; open to the atmosphere beyond the liquid fuel feed: pip

ln testiinoiiyr in ni'esenee ot f' 

